Calendering-machine for paper-pulp pails



(No Model.) 2 Sheets-'Sheet 1.

` E. W; LEONARD & J. STEVENS.

GALENDERING MACHINE POR PAPER PULP` PAILS, &c.

No. 818,984. Patented May 5, 1885.

IllllllllllIIrl (No Model.) 2 SheetseShet 2. H. W. LEONARD J. STEVENS.

GALENDERING MACHINE POR PAPER PULP `'P-ALILS, &c. No. 316,984. Patented Mayv, 1885.A

IIIIII N. PETERS. Plwiouhugnpher. Wnabinmun. n. C.

UNITED STATES PATENT OFFICE.Y

HENRY W. LEONARD, OF SYRACUSE, AND JOHN STEVENS, OF PORT BYRON 1 ASSIGNORS TOTHE -SYRAGUSE PAPER WARE COMPANY, OF SYRACUSE,

NEW YORK. Y

CALENDERING-IVIACHIN FOR PAPER-PULP PAILS, 86C.

SPECIFICATION forming part of Letters Patent No. 316,984, dated May 5, 1885.

Application filed July 21, 1884.

.To aZZ whom it may concern,.-

Be it known that we, HENRY W. LEONARD and JOHN STEVENS, residing, respectively, at Syracuse, in the county of Onondaga and State 5 of New York, and Port Byron, in the county of Cayuga and State of New York, have invented new and useful Improvements in Calendering-Machines, of which the following is a specification.

This invention relates to an improvement in that class of calendering-machines for paper-pulp pails, Svc., which consist of two tapering rollers, one mounted in stationary and the other in movable bearings, and which are employed in calendering pails and similar tapering vessels made of paper or paper-pulp. The object'of our invention is to produce a machine of this kind which shall be strong and effective, and which can be easily and conveniently operated by the attendant; and our invention consists of the improvements which will be hereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings,consisting of two sheets,Figurelis a side elevation,and Fig. 2 a front elevation, of our improved machine. Fig. 3 is a longitudinal section, and Fig. 4 a cross-section, of the upper part of the machine. Fig. 5 is a sectional top plan view of the ma- 3o chine. Fig. 6 is a fragmentary crosssection of the lower cross-head on an enlarged scale. Like letters of reference refer to like parts in the several figures.

A represents the stationary supporting- 3 5 frame provided at its top with two curved parallel angle-bars, a a, on which is supported the upper adjustable frame, A.

B represents the driving-roller which receives the pail or other vessel to be calendered, 4o and which is secured to the upper end of a vertical shaft, b. The latter is journaled in bearings b b2, secured to the main frame A, and is driven by gear-wheels b3, or other suitable means.

C represents the adjustable roller, which is made movable toward and from the roller B, and which is pressed against the pail or other vessel placed on the roller B with sufficient force to calender said vessel. The rollerGis (No model.)

mounted loosely on a shaft, c, which is held at its upper end in a cross-head, D, and at its lower end in a cross-head, E. The rollers Band C taper upwardly in accordance with the tapering form of the pails to be calendered. The shaft c stands at an angle to the shaft b, and the supports a are curved in the arc of a circle concentric with the point in which the axes of the shafts b and c intersect each other, so that in adjusting the frame A on the frame A the shafts b and c will remain radial to the same point of intersection.

The frame A consists of two side pieces, which are provided at their upper ends with bearings d, in which the upper cross-head, D, is journaled. The bearings d are made adj ustable in these side pieces by set-screws d. The lower sides of the base-pieces e of the upper frame, A are curved concentric with the supporting-pieces a, and connected by transverse bars e', which rest on the curved supporting-pieces a. The latter are provided with longitudinal slots e2, through which pass the fastening-screws e3, by which the frame A is adj ustably secured to the frame A. The basepieces c are provided on their inner and upper sides with angular recesses f, curved concentric with the axis of the upper cross-head, D. The lower cross head, E, is guided in the recessesf by rollers f, attached to the cross-head and bearing against the outer sides of these re' cesses, while the ends of the cross-head rest upon the lower sides of said recesses, as clearly shown in Figs. 4 and 6. In moving toward and from the roller B the rollerC swings, with the upper crossshead, D, on the journals of the latter and with the lower cross-head, E, in the curved guides f.

G G represent toggle-levers secured to a horizontal shaft, g, which is journaled in bearings g, secured to the rear portion of the lower frame, A.

G G represent toggle-links connecting the levers G with the lower cross-head, E.

H represents a hand-lever secured to the shaft g and extending forwardly on one side of 95 the rollers B and C, and terminating in convenient reach of the operator. By depressing the lever H the roller C is swung toward the roller B2, and byareverse movement of the l 2. The combination, with'a stationary talever the roller C is removed from the roller B.

lz represents a projection formed on the inner side of the lever H and bearing upon one of the toggle-levers G, thereby assisting in depressing the toggle-levers and preventing eX- cessive strain on the shaft g.

t represents a pipe through which steam is supplied to the interior of the hollow roller C by a bore or channel, i', formed in the upper portion of the shaft c.

j is a pipe through which the waste steam is discharged from the roller C by means of a bore or channel, j', formed in the lower portion ofthe shaft c.

lc represents a perforated pipe arranged along the rollers B and C, near their line' of contact,fo`r the purpose of delivering tine jets of moist steam upon the pail or other vessel placed on the roller B. The pipe k is secured to the frame A', and receives its supply of steam from the discharge-pipe]- by a liexible pipe, k'.

m represents a flexible pipe through which the water of condensation and waste steam are discharged from the roller C.

The movement of the cross-head D on its journals is comparatively small, and it is therefore not necessary to make the upper pipe, fr', iexible if a long supply-pipe is used.

N represents a stuffingbox or packing applied to the upper end of the roller G to form a steam-tight joint with the shaft c. By heating the movable roller G the heat is applied to the outer surface of the pail or other vessel placed on the roller B, whereby the calendering operation is rendered more effectual and a smoother iini'sh is obtained.

The pail to be calendered is slipped on the roller B, and the roller G is then pressed against the outer side of the pail by depressing the hand-lever H with sufficient force and for a sufficient length of time to produce the desired finish. The roller C is then withdrawn by raising the lever H, and the calendered pail is removed from the roller B.

We claim as our inventionl. In a machine for calendering paper pails, the combination,with a tapering roller mounted in stationary bearings and adapted to receive the pail to be calendered, of a hollow tapering roller made movable toward and from the stationary roller, and pipes whereby a heating agent is conducted through the movable roller, substantially as set forth.

pering roller, of a movable tapering roller mounted ona shaft, a journaled eross-head in which one end of the shaft is supported, and a cross-head and curved guides, whereby the opposite end of the shaft is guided, substantially as set forth.

3. The combination, with the stationary roller B and the movable roller C,attached to a journaled cross-head, of toggle-bars and a lever, whereby the movable roller is swung toward and from the stationary roller, substantially as set forth.

. 4. The combination, with the tapering stationary roller B and the main frame A, in which said roller is journaled, and which is provided with curved supports a,of the mova- 'ble tapering roller C and the supporting-frame A', adj ustably secured to the curved supports a, substantially as set forth.

5. The combination, with the stationary roller B and movable roller C, of the togglelever G, link G', and handlever H, provided with a projection, h, bearing upon the lever G, substantially as set forth.

6. The combination, with the main frame A and adjustable frame A', of the stationary roller B, journaled in the frame A, movable roller C, mounted on the shaft c, cross-head `D,journaled in the frame A', cross-head E,

supporting the lower end of the shaft c, toggle-bars G G', and handlever H, substantially as set forth.

7. The combination, with the movable roller G, shaft c, and supporting-frame A', provided wit-h curved guides f, of the cross-head E, provided with rollers f', substantially as set forth.

8. The combination, with the stationary roller B, of the hollow movable roller C,steam supply and exit pipes tj, communicating with the hollow movable roller O, and a perforated steam-pipe, 7c, arranged to deliver jets upon the rollers near their line of Contact, substantially as set forth.

Vitness our hands this 7th day ,of May, 1884.

HENRY WV. LEONARD. JOHN STEVENS.

Witnesses:

EDWARD O. VARD, AUSTIN D. COOK.

IOO 

